Electrical Machines Which of following DC motors will have percentage increase of input current for the same percentage increase in torque? Differntical compound. Shunt. Series. Cummulative compound. Differntical compound. Shunt. Series. Cummulative compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole lap wound dc generator has 4 brushes, if one of the brush is damaged, what will be the change in V, I and P ratings V/2, I and P/2 V, I/2 and P/2 V/2, I/2 and P/4 V, I and P V/2, I and P/2 V, I/2 and P/2 V/2, I/2 and P/4 V, I and P ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ induction motor power factor at starting is high as compared to that while running. power factor at starting is low as compared to that while running. none of them. power factor at starting in the same as that while running. power factor at starting is high as compared to that while running. power factor at starting is low as compared to that while running. none of them. power factor at starting in the same as that while running. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor when started on no load does not accelerate up to full speed but runs at 1/7th of the rated speed. The motor is said to be locking. cogging. crawling. plugging. locking. cogging. crawling. plugging. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series generators are used in which of the following applications? Arc welding. Air crafts. All of these Used as boosters in dc distribution or transmission. Arc welding. Air crafts. All of these Used as boosters in dc distribution or transmission. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When Flemings right hand rule to find the direction of induced emf, the thumb points towards direction of flux. opposite to the direction of motion of the conductor. direction of induced emf. direction of motion of the conductor. direction of flux. opposite to the direction of motion of the conductor. direction of induced emf. direction of motion of the conductor. ANSWER DOWNLOAD EXAMIANS APP
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